Close the door, buckle up then turn the key to glow. There shouldn't be a buzz.

Sounds like a bad ground.

Sixto
87 300D

Hmmm, there is a buzz and it's always been there since I've owned the car. That's what I get for buying a car from an electrical engineer. I think his tool box consisted of red high temp silicone, crazy glue, zip ties and 1 chanelock pliars. You wouldn't believe what he tried to "repair" with those. ..and proud of it too!